Apparatus for removing sand or other fine particles from cotton or other material.



P. B. GUMPSTON. APPARATUS FOR REMOVING SAND OR OTHER FINE PARTICLES PROMCOTTON OR OTHER, MATERIAL.

APPLICATION FILED AUG. I0, 1909.

Patented Mar. 22, 1910.

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ATTORNEYS WITNESSES ANDREW a. GRAHAM cd., FNOTOUTNC'GRAFHERS, wnsnmcrou.n. c.

STATES FREDERICK BENNARD CUIVIPSTON, F DALLAS, TEXAS.

APPARATUS FOR REMOVING SAND OR OTHER FINE PARTICLES FROM COTTON OR OTHERMATERIAL.

Specification of Letters Patent.

Application filed August 10, 1909.

Serial No. 512,181.

To all whom it may concern:

Be it known that I, FREDERICK B. CUMB- STON, a citizen of the UnitedStates, and a resident of Dallas, in the county of Dallas and State ofTexas,have invented a new and Improved Apparatus for Removing Sand orother Fine Particles from Cotton or other Material, of which thefollowing is a full, clear, and exact description.

The invention is an improvement in apparatus for removing sand or otherfine particles from cotton or other material by air suction, and has inview an effective means to separate the particles from the inflowingcurrent of air before the latter reaches the suction fan or air pump. Tothis end I provide an inlet conduit for the air and sand with twoapproximately vertical arms, each having a normally closed outlet forthe particles, the conduit directly discharging into one of said armsand indirectly communicating with the other arm through the side, thelast-named arm connecting above its particle outlet through the sidewith the exhaust fan or pump.

Reference is to be had to the accompanying drawings forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in both views.

Figure 1 is a side view of an apparatus embodying my invention, partlyin vertical section; and Fig. 2 is an elevation of the apparatus atright-angles to the position shown in Fig. 1, and also partly invertical section.

The apparatus in its more specific nature embodies a substantiallyhorizontal inlet conduit which leads from a point where the sand orother particles are screened from the cotton or other material, theconduit merging into two approximately vertical arms 11 and 12, thebottom wall of the conduit 10 overhanging the upper end r of the arm 12,as indicated at 13, and discharging directly into the arm 11, theconduit indirectly connecting with the arm 12 through the side of thelatter, as clearly shown in Fig. 1. The lower portions of both the arms11 and.12 are in the nature of a trap, with the arm 11 normally closedby a transversely sliding door or valve 14:, and the arm 12 permanentlyclosed at the bottom and provided with a door 15 at the side, throughthe opening of which the trap can be cleaned out. A substantial distanceabove the door 15 the arm connects through the side with an exhaust fanor air pump 16, under the influence of which the sand or other particlesare drawn with the air through the conduit 10. In order to furtherinsure the passage of the major portion of the particles from theconduit into the arm 11, a chute 17 inclines downwardly from the base ofthe inlet opening of the arm 12 to the adjacent wall of the arm 11.

In the operation of the apparatus the exhaust fan draws in the air withthe sand, which it screens from the cotton or other material to theconduit 10, the sand passing over the bottom wall of the conduitcovering the arm 12 and dropping either directly into the arm 11 or byfirst falling on the chute 17. The air will be drawn through the inletof the arm 12 and pass out through the fan. A small quantity of the sandor particles, especially the finer portions, will be drawn by the airinto the arm 12 and will fall into the trap of this arm, where they canbe easily cleaned out through the door 15. The discharge of the sandthrough the arm 11 is obviously performed by sliding out the door 141.With the apparatus thus constructed, substantially none of the sandpasses through the exhaust fan, and as a consequence the bearings inthis part of the machine are preserved.

Having thus described my invention, I claim as new and desire to secureby Letters Patent:

1. In an apparatus for separating relatively fine particles from amaterial, an inlet conduit for the air and said particles, having anapproximately vertical arm provided with a normally closed outlet forthe particles at the lower end thereof, and an air pump to draw the airthrough the conduit and connecting at the side of the said vertical armabove the said outlet, with the arm, pump and the connection of the pumpwith the arm arranged to prevent the passage of the said particleswithin the pump.

2. In an apparatus for separating relatively fine particles from amaterial, an inlet conduit for the air and the said particles having twoapproximately vertical arms, with the conduit discharging directly intoone of said arms and indirectly into the other arm through thefirst-mentioned arm,

Patented Mar. 22, 1910.

and an exhaust fan for drawing the air and particles through theconduit, having a connection at the side of the indirectly-connect edarm at a substantial distance below the latters connection with thedirectly-connected arm and at a substantial distance above the lower endof the indirectly-connected arm.

3. In an apparatus for separating relatively fine particles from amaterial, an inlet conduit for the air and the said particles, havingtwo approximately vertical arms, each having a normally closed outletfor said particles, and an exhaust fan for drawing the air and particlesthrough the conduit, connected to one of said arms above the saidoutlet.

4. In an apparatus for separating relatively fine particles from amaterial, an inlet conduit for the air and the said particles, havingtwo approximately vertical arms, the conduit discharging directly intoone of said arms and communicating with the other arm through the sidethereof, each of said arms having a normally closed outlet for theparticles, and an air pump to draw the air and the particles from theconduit having a con nectlon with the arm with wlnch the conduitindirectly connects, the said connection being arranged at the side ofthe arm above its outlet for the particles.

5. In an apparatus for separating relatively fine particles from amaterial, an inlet conduit for the air and the said particles, havingtwo approximately vertical arms each having a trap for said particles atthe lower portion thereof, said conduit having its bottom wall directedto one of said arms and overlying the other arm, the conduitcommunicating with the last mentioned arm under said wall, and anexhaust fan to draw the air and the particles from the conduit, having aconnection wit-h the last mentioned arm arranged at the side thereofabove its trap.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

FREDERICK BENNARD CUMPSTON.

Vitnesses J. D. IVIOCLANAHAN, Jr., G. E. RAMsnY.

